References
CIA (2013) The World Factbook 2013–14. Washington, DC: Central Intelligence Agency. https://www.cia.gov/library/publications/the-world-factbook/geos/xx.html
DeLong JB (1998) Estimating world GDP, one million B.C.—Present. (http://holtz.org/Library/Social%20Science/Economics/Estimating%20World%20GDP%20by%20DeLong/Estimating%20World%20GDP.htm)
Ehrlich PR, Ehrlich A (2013) Can a collapse of global civilization be avoided? Proc R Soc B 280:20122845
Kelly MJ (2013) Why a collapse of global civilization will be avoided: a comment on Ehrlich & Ehrlich. Proc R Soc B 280:20131193
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Prasad, A. Rob Dietz and Dan O'Neill, Enough is enough: building a sustainable economy in a world of finite resources. Landscape Ecol 29, 933–935 (2014). https://doi.org/10.1007/s10980-014-9998-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10980-014-9998-x